From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751724AbeBETZ0 (ORCPT ); Mon, 5 Feb 2018 14:25:26 -0500 Received: from mail-bl2nam02on0080.outbound.protection.outlook.com ([104.47.38.80]:34896 "EHLO NAM02-BL2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750846AbeBETZS (ORCPT ); Mon, 5 Feb 2018 14:25:18 -0500 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Janakarajan.Natarajan@amd.com; From: Janakarajan Natarajan To: kvm@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , Paolo Bonzini , Radim Krcmar , Len Brown , Borislav Petkov , Kyle Huey , Tom Lendacky , Janakarajan Natarajan Subject: [PATCH v5 0/3] Support Perf Extension on AMD KVM guests Date: Mon, 5 Feb 2018 13:24:50 -0600 Message-Id: X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [165.204.77.1] X-ClientProxiedBy: CO1PR15CA0095.namprd15.prod.outlook.com (10.175.177.15) To DM5PR12MB1370.namprd12.prod.outlook.com (10.168.238.21) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 4fff6a8e-01d8-4638-267f-08d56cce2f03 X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(2017052603307)(7153060)(7193020);SRVR:DM5PR12MB1370; X-Microsoft-Exchange-Diagnostics: 1;DM5PR12MB1370;3:NiK9U5jmzTo0CcO4ESy4K8FLO8ti5YcZ1k5Xv9+yuFXD6a/TLq6R6sq+G+7grUY1HrMJxyuk9XSJJEUPvd+AVKlu7qjkIj6o71Qdu113gLZmcyWiTp/V9lZMkfTHoCLUD58egiEl6xUoxpxiC4rVtUZwPxeAd0feeKmQf/S++b3Ub+RrHCGduBsH8VpR+eTmDLgoeaO8GmwB+oA9Gm410Y7bT24wPoDN8H1Uz7CkAmUPIMEpdipRXF3ibdEaZu67;25:jL3mnoR185p2SezLZ05ZRSghlGs6SxsmJXKZQqVnrV7W0XkypmewFo9Pf5XsjmGLhCtk8B6vespvrkevD8ct0xDN3zA53g81HRPw0KJGJCpFRygQKR1zrdwdyI3jRa3f+OSLWyhJa7fhCz0eSZopOcDeKt11EGTywzuJnE046PkrHHQo8cmYbV8FMHvjFbpPz6TLQv1lZq+azubDvTiZqj1n58uiyRNbU1yxz+XwLL1wYY8Fr4or539vT4qz2IlMX3qEKFAjPBjA13lZRZLzPoVkG1JgwciKa0LsHv/E3AgDfuxrfmHpxjqBX6LsOY80M5IP8TjcPrkQLU4rmRGiPw==;31:L0vUxNPhGYqhEKkdmefG36AqnTydaqm0ruA2MY32J9i+WrCFZkRPHBVgsetPVpAAvI3CMnuQowaeZ0Of94DZ928L5hRJvCoy0fKqY38Coxf9eT/jyJ3Hw1sB9qFL6OH6Agdz5SIZwmoEqo6Gb5HO/Ax8S36skc6pCewJLM065nhLPxg4CUIsJU9N4YexiGHqISjVK6gpaYiMBV09LCXxwsfjBA9wdCaLj7eVviPX/4I= X-MS-TrafficTypeDiagnostic: DM5PR12MB1370: X-Microsoft-Exchange-Diagnostics: 1;DM5PR12MB1370;20: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;4:Zy4y5phHA2Qyr3PaiT3oAue1ByECb4/K4YHqiKZZ8ZWyBDZ7JD0C/L7Eoo/tt+cB+W9bj+O3p4aubdWngBL9U4Xk0bHS0M0eq6eeOQpbdbn/wXwGxIG6Ip0sUnqBgnlXhysRl6vE7jdHYNKSSTXv+K7/aMTT0C1wGBphyCzDI6f80MfdnXsf9v9H9KwXqH7Pd7w0u8Nq9RI74cSOEFcrYhrynjXdFItAhVLK+JLpchliQv1PoAL3p4AZEtCmYptaQRZallrTqpc/35dgCTw7Yg== X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; 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When perf runs on a guest with family = 15h || 17h, the MSRs that are accessed, when the Perf Extension flag is made available, differ from the existing K7 MSRs. The accesses are to the AMD Core Performance Extension counters which provide 2 extra counters and new MSRs for both the event select and counter registers. Since the new event select and counter MSRs are interleaved and K7 MSRs are contiguous, the logic to map them to the gp_counters[] is changed. This patchset has been tested with Family 17h and Opteron G1 guests. v1->v2: * Rearranged MSR #defines based on Boris's suggestion. v2->v3: * Changed the logic of mapping MSR to gp_counters[] index based on Boris's feedback. * Removed use of family checks based on Radim's feedback. * Removed KVM bugfix patch since it is already applied. v3->v4: * Rebased to latest KVM tree. v4->v5: * Removed conditional check when exposing Perf Extension flag to guests based on Radim's feedback. Janakarajan Natarajan (3): x86/msr: Add AMD Core Perf Extension MSRs x86/kvm: Add support for AMD Core Perf Extension in guest x86/kvm: Expose AMD Core Perf Extension flag to guests arch/x86/include/asm/msr-index.h | 14 ++++ arch/x86/kvm/cpuid.c | 2 +- arch/x86/kvm/pmu_amd.c | 140 +++++++++++++++++++++++++++++++++++---- arch/x86/kvm/x86.c | 1 + 4 files changed, 142 insertions(+), 15 deletions(-) -- 2.7.4